chore: redact val.town from code and docs, rename exit-node script #106

Job	Run time
android	9m 35s
build (x86_64-unknown-linux-musl, self-hosted, linux, x64, mhrv-build, mhrv-rs-linux-musl-amd64)	2m 2s
build (aarch64-unknown-linux-gnu, self-hosted, linux, x64, mhrv-build, mhrv-rs-linux-arm64)	3m 13s
build (mipsel-unknown-linux-musl, self-hosted, linux, x64, mhrv-build, mhrv-rs-openwrt-mipsel-sof...	3m 6s
build (aarch64-unknown-linux-musl, self-hosted, linux, x64, mhrv-build, mhrv-rs-linux-musl-arm64)	3m 39s
build (x86_64-unknown-linux-gnu, self-hosted, linux, x64, mhrv-build, mhrv-rs-linux-amd64)	6m 47s
build (aarch64-apple-darwin, macos-latest, mhrv-rs-macos-arm64)	6m 33s
build (arm-unknown-linux-gnueabihf, self-hosted, linux, x64, mhrv-build, mhrv-rs-raspbian-armhf)	2m 5s
build (x86_64-apple-darwin, macos-latest, mhrv-rs-macos-amd64)	6m 19s
build (x86_64-pc-windows-gnu, windows-latest, mhrv-rs-windows-amd64)	12m 17s
tunnel-docker	14m 59s
release	49s
commit-releases	56s
	1h 12m 20s

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